ASTM B88-22 - 1.10.2022
 
Significance and Use

17.1?For purposes of determining compliance with the specified limits for requirements of the properties listed in Table 7, an observed value or calculated value shall be rounded as indicated in accordance with the rounding method of Practice E29.

 
1. Scope

1.1?This specification establishes the requirements for seamless copper water tube suitable for general plumbing, similar applications for the conveyance of fluids, and commonly used with solder, flared, or compression-type fittings. The type of copper water tube suitable for any particular application is determined by the internal or external fluid pressure, by the installation and service conditions, and by local requirements. Means of joining or bending are also factors which affect the selection of the type of tube to be used.2

Note 1:?Annealed tube is suitable for use with flared or compression fittings, and with solder-type fittings, provided rounding and sizing of the tube ends is performed where needed.

Note 2:?Drawn temper tube is suitable for use with solder-type fittings. Types K and L tube, in the drawn temper, are suitable for use with certain types and sizes of compression fittings.

Note 3:?Fittings used for soldered or brazed connections in plumbing systems are described in ASME B16.18 and ASME B16.22.

1.2?The tube shall be produced from the following coppers, and the manufacturer has the option to supply any one of them, unless otherwise specified.

Copper
UNS No.

Previously Used
Designation

Description

?

?

?

C12000

DLP

Phosphorus deoxidized,
low residual phosphorus

C12200

DHP

Phosphorus deoxidized,
high residual phosphorus

1.3?The assembly of copper plumbing or fire sprinkler systems by soldering is described in Practice B828.

1.4?Solders for joining copper potable water or fire sprinkler systems are covered by Specification B32. The requirements for acceptable fluxes for these systems are covered by Specification B813.

1.5?UnitsThe values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.

1.5.1?This specification is the companion specification to SI Specification B88M; therefore, no SI equivalents are shown in this specification.

1.5.1.1?ExceptionValues given in inch-pound units are the standard except for grain size, which is stated in SI units.

1.6?The following safety hazards caveat pertains only to the test methods portion, Section 16, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.7?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

 
2. Referenced Documents

B32-20

Standard Specification for Solder Metal

B88M-20

Standard Specification for Seamless Copper Water Tube (Metric)

B153-22

Standard Test Method for Expansion (Pin Test) of Copper and Copper-Alloy Pipe and Tubing

B577-19

Standard Test Methods for Detection of Cuprous Oxide (Hydrogen Embrittlement Susceptibility) in Copper

E62-89(1996)

Standard Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)

E112-13(2021)

Standard Test Methods for Determining Average Grain Size

E243-18

Standard Practice for Electromagnetic (Eddy Current) Examination of Copper and Copper-Alloy Tubes

E255-23

Standard Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition

E527-23

Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

ASME B16.18

Cast Copper Alloy Solder Joint Pressure Fittings Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Two Park Ave., New York, NY 10016-5990, http://www.asme.org.

ASME B16.22

Wrought Copper and Copper Alloy Solder Joint Pressure Fittings

E53-07

Standard Test Method for Determination of Copper in Unalloyed Copper by Gravimetry

B813-16

Standard Specification for Liquid and Paste Fluxes for Soldering of Copper and Copper Alloy Tube

B828-23

Standard Practice for Making Capillary Joints by Soldering of Copper and Copper Alloy Tube and Fittings

B846-19a

Standard Terminology for Copper and Copper Alloys (Includes all amendments and changes 8/8/2019).

B900-16(2022)

Standard Practice for Packaging of Copper and Copper Alloy Mill Products for U.S. Government Agencies

B968/B968M-16(2022)

Standard Test Method for Flattening of Copper and Copper-Alloy Pipe and Tube

E8/E8M-24

Standard Test Methods for Tension Testing of Metallic Materials

E18-22

Standard Test Methods for Rockwell Hardness of Metallic Materials

E29-22

Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications